@article{article93a2d8b5,
title   = {Elemental analysis of agricultural soil samples by particle induced x-ray emission (PIXE) technique},
author = {Cruvinel, Paulo E. and Flocchini, Robert G. and Artaxo Netto, Paulo Eduardo and Crestana, Silvio and Herrman Junior, Paulo S. P.},
year = {1999},
doi = {10.1016/s0168-583x(98)01017-9},
journal   = {Nuclear Instruments and Methods in Physics Research B}
}